You cannot write fractions using Roman numerals.
xviii
DCXXIX
MCMLXXIV
XXXVV
MXC
90 = XC
It is: 2012 = MMXII
The Roman numerals for the number 2 are "II". Consequently, to represent the 2 Australian Olympians using Roman numerals, we would write "II".
You write 1533 in roman numerals like this: MDXXXIII
It is done by using Roman numerals: VI = 6
To write 19000 in Roman numerals, combine the Roman numerals for 1000 (M) and 9000 (IX). Therefore, 19000 in Roman numerals is written as MXCM.